code: def test_pointplot():
      "Test for pointplot"
  
      x = np.arange(-3, 3, 0.1)
      y2 = x**2
      y3 = x**3
      df = pd.DataFrame({"x": x, "Parabula": y2, "Cube": y3})
  
      arguments = dict(
          x="x",
          xticks=range(-3, 4),
          size=5,
          colormap=["#009933", "#ff3399"],
          title="Pointplot (Parabula vs. Cube)",
          marker="x",
          show_figure=False,
      )
  
      p_pointplot = df.plot_bokeh(kind="point", **arguments)
      p_pointplot_accessor = df.plot_bokeh.point(**arguments)
  
      p_pointplot_pandas_backend = df.plot(kind="point", **arguments)
      p_pointplot_accessor_pandas_backend = df.plot.point(**arguments)
  
      # Output plot as HTML:
      output = pandas_bokeh.row(
          [
              p_pointplot,
              p_pointplot_accessor,
              p_pointplot_pandas_backend,
              p_pointplot_accessor_pandas_backend,
          ]
      )
      with open(
          os.path.join(DIRECTORY, "Plots", "Pointplot.html"), "w"
      ) as f:
          f.write(pandas_bokeh.embedded_html(output))
  
      assert True
  
imports: import os
  import numpy
  import pandas
  import pytest
  import pandas_bokeh
label_desc: Use image node_id 13 for calling a global function with example usage: test_pointplot() without return types